CANNES, FRANCE - MAY 23: Sienna Miller attends the "Macbeth" premiere during the 68th annual Cannes Film Festival on May 23, 2015 in Cannes, France. (Photo by Anthony Harvey/FilmMagic,)
CANNES, FRANCE - MAY 23: Sienna Miller attends the "Macbeth" premiere during the 68th annual Cannes Film Festival on May 23, 2015 in Cannes, France. (Photo by Anthony Harvey/FilmMagic,)